So you post asking for advice and answer your own post like you're answering someone else's post?
24.5 fps in Crysis 3 on Ultra with a R9 270x is flawless?
http://www.techpowerup.com/reviews/AMD/R9_270X/12.html
That's pretty subjective. The same way buying an older generation of CPU/Architecture makes sense because the graphics card is most important.
If you're looking for advice in the future regarding how to build the best gaming build, include the titles you want to play on ultra and we can tell you that $800 won't cut it unless you're into choppy video at 24 fps averages.